| Yugoslav Third League | |
| Founded: | 1950 |
| Folded: | 1950 |
| Country: | SFR Yugoslavia |
| Promotion: | Yugoslav Second League |
| Relegation: | Yugoslav Republic Leagues |
| Levels: | 3 |
Yugoslav Third League (Croatian: 3. savezna liga; Serbian: 3. савезна лига) was the third tier football league of SFR Yugoslavia. The top clubs were promoted to the second tier, the Yugoslav Second League.
The Yugoslav Third League was played only in season 1950. In the period before and after 1950 the league system was different and a Yugoslav Third League never existed as such.
League was unified, comprising twelve teams.
In 1988, Inter-Republic Leagues were introduced as a third tier between Yugoslav Second League and Republic Leagues.
| Season | Champion | Second place | Third place | Promoted to Second League | |
|---|---|---|---|---|---|
| 1988–89 | West[1] | Rudar Ljubija | Mladost Petrinja | Zagreb | Rudar Ljubija |
| East | Mladost Lučani | FAP | Bor | Mladost Lučani | |
| North | Zemun | Rudar Kostolac | Vrbas | Zemun | |
| South | Iskra Bugojno | Famos Hrasnica | Neretva Metković | Iskra Bugojno | |
| 1989–90 | West[2] | Zagreb | Zadar | Mladost Petrinja | Zagreb |
| East | Bor | Novi Pazar | Radnički Kragujevac | Bor | |
| North | Radnički Beograd | Bečej | Jedinstvo Brčko | Radnički Beograd | |
| South | Mogren | Rudar Kakanj | Famos Hrasnica | Mogren | |
| 1990–91 | West[3] | Zadar | Jugokeramika Zaprešić | Rudar Ljubija | Rudar Ljubija |
| East | Balkan Stokokomerc | Radnički Kragujevac | Teteks | Balkan, Radnički, Teteks | |
| North | Bečej | Vrbas | Hajduk Kula | Bečej, Vrbas, Hajduk | |
| South | Čelik Zenica | Jedinstvo Bijelo Polje | Neretva Metković | Čelik, Jedinstvo | |
| 1991–92 | West | Travnik | Lokomotiva Mostar | Vitez | |
| East | Jastrebac Niš | Sileks | Dubočica | ||
| North | Novi Sad | Dinamo Pančevo | Agrounija Inđija | ||
| South | Rudar Pljevlja | Mladost Lučani | Novi Pazar |